baber/WOPTO huggingface dataset:
Patent GB-1204643-A (GB)
Title: A take-up reel assembly
Inventor: CHERNIAVSKYJ JAROSLAV
IPC: B65H75/14
Filed: 1969-04-15
Abstract: 1,204,643. 204,643. Cine film take-up spool. BELL & HOWELL CO. April 15, 1969 [April 29, 1968], No.19256/69. Heading G2E. A take-up reel for cine film has around the hub 12 a deformable band 30 having a toothed extenal surface 34 to engage film perforations, a plurality of sprung members 38 around its internal surface which engage the outer surface of the hub 18 to hold the band concentric and to rotate it with the hub in the unloaded condition, locator members 40, 44 project inwards so as to engage the hub only on deformation of band 30 when loaded with film and allowing slippage between band 30 and hub 12.
Patent GB-1498910-A (GB)
Title: Microwave transistor amplifier
IPC: H03F3/60
Filed: 1975-05-08
Abstract: 1498910 Transistor amplifiers COMMUNICATIONS SATELLITE CORP 8 May 1975 [13 May 1974] 19423/75 Heading H3T A microwave amplifier comprises two common emitter stages Q1, Q2 with an input coupling network and an intercoupling network each of which comprises distributed impedance elements. An output coupling network of distributed impedance elements is also provided. The two stages receive their bias supplies from a circuit which includes a field effect transistor Q3 connected in a constant current circuit to reduce damage from overvoltage and temperature dependency. The circuit, including the distributed impedances, is constructed on a polyphenylene-oxide substrate.
Patent GB-1185677-A (GB)
Title: Composite Reinforced Plastics Pipe
Inventor: GROSH JAMES LUTHER
IPC: B32B1/08
Filed: 1967-04-27
Abstract: 1,185,677. Pipes. UNITED AIRCRAFT CORP. 27 April, 1967 [2 May, 1966], No. 19533/67. Heading F2P. A composite plastics reinforced pipe comprises a plurality of helical windings 7 spaced radially of each other, and each formed by a band consisting essentially of a multiplicity of continuous parallel filaments, interposed layers of particulate material 4 in sufficient volume to withstand compression loads between adjacent windings, and a cured synthetic plastics resin matrix binding the windings and particulate material into a unitary structure. The filaments may be of glass, metallic or silica filaments and the particulate material may be sand, silica vermiculite, or small hollow spheres of graphite, glass, or phenolic resin. The pipe is made by winding filamentary band wet with resin on a rotating mandrel from an axially-moving carriage and particulate material is distributed on to the formed filamentary layer from a hopper 3 moving with the carriage. The operation is repeated to apply successive filamentary and particulate layers, the entire structure being subsequently cured with the mandrel either remaining or being removed after curing. The binding resin may be applied prior to winding or subsequently by brushing or spraying. The ratio of particulate layer thickness to filament layer thickness is in the range 2-50, preferably about 6. As illustrated in Fig. 3, the thickness ratio may vary through successive layers of the pipe wall with a lower ratio being present in the inner and outer regions of the pipe wall. The adjacent turns of each winding need not be contiguous as shown. In the embodiment of Fig. 4 (not shown), the filament windings are non-contiguous. Longitudinal reinforcing filaments may be incorporated, preferably at the pipe outer surface, and held in place by additional windings. Non- permeable layers of synthetic plastics or rubber sheets may be applied to the inner and outer pipe surfaces or within the wall structure.
Patent GB-1068116-A (GB)
Title: Release device for moving picture cameras
Inventor: HAHN WERNER
IPC: G03B17/56
Filed: 1965-05-10
Abstract: 1,068,116. Cine cameras. PENTACON DRESDEN KAMERA - und KINOWERKE VEB. May 10, 1965, No. 19535/65. Heading G2E. A cine camera has a two-stage release lever 11 mounted on detachable handle 10, the first stage of the lever movement starting the camera drive at a selected framing speed, and the second stage movement releasing the brake on a speed governor so that maximum framing speed commences. Release dogs 12, 13 of unequal length on lever 11 engage in succession the normal and high speed releases 7, 8 whose release strokes are equal. Alternatively, the dogs 12, 13 may be of equal length while releases 7, 8 are unequal in stroke.
Patent GB-464071-A (GB)
Title: An improved sealing or draught excluding device for windows or doors
IPC: E06B7/232
Filed: 1936-07-14
Abstract: 464,071. Draught - excluders. GRETENER, M. July 14, 1936, No. 19550. Convention date, Aug. 31, 1935. [Class 20 (iii)] A device for sealing the meeting edges of doors or windows and their frames against draught and leakage of gases consists of a flexible strip 6 anchored in an undercut recess in the frame 4, or in a fillet 7 thereon, and engaging a rubber or like elastic pad 8 on the sash 2. The device is situated in the space 5 formed by the rabbeted meeting edges of the sash and frame. The fillet 7 or the metal backing of the pad 8 is sealed by plastic material to its support. The backing for the pad 8 may be a frame or separate bars.
Patent GB-173206-A (GB)
Title: Improvements in aircraft
IPC: B64C3/14
Filed: 1921-07-21
Abstract: 173,206. International All-Steel Aircraft Syndicate, Ltd. Dec. 18, 1920, [Convention date]. Drawings to Specification. Fuselages; planes, arrangement of.-A fuselage, of aerofoil construction, and cantilever wings are arranged so that the angle of incidence of the wings is greater than the angle of incidence of the fuselage. The tail plane may be above the chord of the wings. The contour of the fuselage may be similar to that of the wings. Reference has been directed by the Comptroller to Specification 148,891.
Patent GB-147642-A (GB)
Title: Monocylindric two stage air compressor
IPC: F04B25/02
Filed: 1920-07-08
Abstract: 147,642. Maschinenbau Akt.-Ges. H. Flottmann & Co. Oct. 31. 1917. [Convention date]. Compound piston pumps.-In a singlecylinder two-stage compressor with a differential piston, the cylinder g, Fig. 1, is formed with working-spaces I, II, III. the space I and the annular space II forming the low-pressure space, and the space III the high-pressure space. A low-pressure receiver and cooler k is provided, and the connecting-rod a is connected to a crosshead b. Owing to the reciprocating weight. and the three working spaces. the changes of stress in the piston-rod take place during the same half-stroke and at each time with a small inclination of the curve of pressure.
Patent GB-184354-A (GB)
Title: Improvements in electric couplings
IPC: H01R13/629
Filed: 1921-07-21
Abstract: 184,354. Davis, A. L. July 21, 1921. Plug-and-socket couplings for wiring folding w.ing structures for asroplanes and for analogous uses have for at least one of the element. a resilient universal mounting. The electrical contact members 10, 22 are mounted in insulating blocks secured in plug - and - socket housings 14, 26, respectively by screwed sleeves Which damp them against internal flanges and to which waterproof sleeves 21 may be bound. The plug housing 14 is rigidly fixed by screws through its flange to one member 32 of the wing structure and the socket housing 26 has perforated lugs 27 or a. flange through which pass with some play pins 37 fixed upon a ring 35 loosely surrounding the housing and fixed to the other member 34 of the wing structure. Springs 38 are mounted upon these pins between the housing lugs or flange and washers 39 upon the pins. The meeting edges of the two housings are bevelled and the socket housing abuts .against rubber ring 16 surrounding the plug housing.
Patent GB-571316-A (GB)
Title: Fastening means and operating means of sliding doors
IPC: E05B65/08
Filed: 1943-11-26
Abstract: 571,316. Fastenings. OVERTON, W. Nov. 26, 1943, No. 19754. [Class 44] A fastening for a sliding door comprises a latch 14 attached to a cam 21 keyed to a spindle 18 carried in elongated slots 19 in an extension of the handle 12 and a bush 40 mounted in the door. The handle 12 is pivoted at 36 on a bracket 37 and a spring 26 tends to keep the extension 24 and the cam 21 in abutment. A bush 39 is attached to the spindle 18 and is connected by a torsion and compression spring to the bush 40 so that the handle 13, that is pivoted on the spindle 18, may be moved outwards from the door before actuation. Teeth 25 are secured to the latch 14 and similar teeth are provided on the striking plate 15. The length of the latch 14 is adjustable by screwing into the tapped bore 31; it is locked by a grub screw 32 engaging a slot 34.
Patent GB-655720-A (GB)
Title: Improvements in or relating to industrial diamonds
IPC: B24B53/12
Filed: 1949-09-30
Abstract: 655,720. Lapping diamonds ; trueing and other diamond tools. NAGY, A. Sept. 30, 1949, No. 19801/50. Divided out of 655,705. [Classes 60 and 124] A multiplicity of cutting points or edges is formed on an industrial diamond by profile grinding with a lap coated with diamond abrasive. The profile on the diamond is formed by the method described in Specification 655,705 and may comprise two series of V grooves intersecting at right angles, thus providing a number of pyramidal cutting points 25, Fig. 5. Such a diamond may have incisions to assist in keying it into a holder 21, Fig. 8, and is used for trueing a grinding wheel 23, the diamond being presented to the wheel so that the cutting direction is diagonal to the pattern of grooves. One line of cutting points may be used at a time or, alternatively, the tool may be disposed to the wheel as shown so that successive lines of cutting edges cut deeper into the wheel. A particularly smooth and accurate surface can be obtained by using the tool without tilt. Maximum wear may be obtained from the tool before regrooving becomes necessary by indexing it through angular intervals of 90 degrees. To true screwthread grinding wheels, the diamond is provided with a series of parallel grooves 36 having the profile of the required screw thread. A rock drilling crown comprising a holder 40, Figs. 15 and 16, and a matrix 39 in which are set a number of diamonds of the pattern shown in Fig. 5 can be used as a milling cutter for trueing. The diamonds may be set with a tilt so that the tops of the pyramids come into progressive engagement with the work. An irregular profile may be produced on a grinding wheel or other workpiece by a diamond in which a corresponding profile has been cut by a shaped cast-iron lap coated with diamond abrasive. Fig. 12 shows an end milling cutter with two diamonds 20 each having a series of grooves 38 of " ratchet" profile. A face milling cutter may be made by setting the diamonds with their grooves parallel to the axis of rotation. Diamonds of the pattern of Fig. 5 can be set in a cylindrical holder to form a reamer.
Patent GB-299495-A (GB)
Title: Improvements in and relating to pumping apparatus
IPC: F04C14/02
Filed: 1927-07-26
Abstract: 299,495. Gull, A. E. July 26, 1927. Movable - abut - ment type; regulating p u m p s; plant; strainers ; valves, distributing.-The delivery of a pump for artificial silk &c. is kept constant by means of an automatically variable resistance in the delivery pipe. The resistance may be provided by a capillary valve 6 connected to a piston 68 which is exposed on its under surface to the delivery pressure of the primary pump 2, while its upper surface is open to the suction pipe 2d of the pump 2. If the resistance to delivery increases, the increased pressure reacts through the feeding pump 3 into the pipes 3<b>, 2<c>, causing the piston 6<e> to rise and shorten the effective length of the valve 6, without changing its delivery area. The pump 2 which feeds the pump 3 draws from a. supply pipe 2h through a valve 2g. A bye-pass 2<i> controlled by a needle valve 2j allows leakage from the pump 3 to return to the suction side of the pump 2. A filter 6<c> is arranged in the delivery pipe.
Patent GB-1412727-A (GB)
Title: Method of and apparatus for the manufacture of bottles of thin  glass
IPC: C03B7/084
Filed: 1974-05-06
Abstract: 1412727 Producing hollow glass blanks R E LAMBERT and M J T VAN DE WALLE 6 May 1974 [8 May 1973] 19856/74 Heading C1M To produce a hollow blank for subsequent blowing into final shape, a cooled gathering form is immersed in a bath of molten glass, at least a part of the form is withdrawn so that it is surrounded by a blank of partly solidified glass, separating the blank from the bath, separating the blank from the form and introducing the separated blank into a blowing mould. Fig. 1 illustrates a form 1 which performs a reciprocating motion through an outlet in the base of a channel containing the molten glass bath 2. Shears 5 are provided separate the blank from the bath when the former reaches the end of its downward travel. At the same time the blank is gripped by a gripper device 6 so that as the former moves upward the blank 3, is slid off the former. In an alternative embodiment the blank is removed from the former at a position above the bath.
Patent GB-1390953-A (GB)
Title: Process for the preparation of lubricating oils
IPC: C10M101/02
Filed: 1972-04-28
Abstract: 1390953 Lubricating oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 28 April 1972 19877/72 Headings C5E and C5F Lubricating oils having viscosity indicies below 90 are prepared by blending (a) at least 1 wt. per cent of an aromatic extract of a deasphalted short residue of a paraffinic crude oil with (b) a hydrofinished aromatic extract of a vacuum distillate and/or (c) a vacuum distillate fraction of a naphthenic crude oil. In the examples a long residue of a paraffinic crude oil is vacuum distilled to yield spindle oil, light machine oil and medium machine oil distillates and a residue which is deasphalted with propane and extracted with furfural. A portion of the furfural extract is hydrofinished at 340- 360‹ C. and 130-140 atm. using a catalyst comprising Ni, Mo and P on alumina. Blends are made using the extract or using the hydrofinished extract as component (a). The spindle oils is extracted with furfural and then hydrofinished to provide component (b). The long residue of a naphthenic crude oil is vacuum distilled to provide a fraction which, after treatment with sulphuric acid, has a viscosity at 140‹ F. of 140 sec. Redwood I and another fraction which, after hydrofinishing, has a viscosity of 50 sec. Redwood; these two refined fractions are used as component (c). The blend can also contain 0À01-1 wt. per cent of a pour point depressant, e.g. a condensation product of chlorinated wax with phenol or naphthalene, a polymer of an ester of acrylic or methacrylic acid having unbranched alkyl chains containing 16-22 carbon atoms, or a copolymer of these esters with 4 vinyl pyridine, or a copolymer of ethylene and vinyl acetate; a phenolic antioxidant; a detergent, e.g. calcium petroleum sulphonate, calcium alkylsalicylate, polyisobutenyl - tetraethylene pentamine reaction product, or a reaction product of tetraethylene pentamine with an alkylsuccinic anhydride; or a zinc dialkyldithiophosphate. The blends are used as automotive oils, gear oils, axle oils, and in greases, concrete mould oils, rubber processing and extender oils, cutting oils, printing inks and moulding oils.
Patent GB-354941-A (GB)
Title: Improvements relating to sound and picture films
IPC: G03B31/00
Filed: 1930-07-01
Abstract: 354,941. Associated sound and picture films. I. G. FARBENINDUSTRIE AKT.- GES., Frankfort-on-Main, Germany. July 1, 1930, No. 19950. Convention date, July 1, 1929. Addition to 354,455. [Class 40 (ii).] Relates to a modification of the method of marking separate but associated sound and picture films with marginal dots and dashes for the purpose of synchronization, which is described in the parent Specification. In place of the dot-and-dash marks of the Morse alphabet, there are substituted for the dots marks capable of indicating direction, for instance isosceles triangles, arrow-heads or the like.
Patent GB-147926-A (GB)
Title: Improvements in fluid pressure percussive hammers
IPC: B25D11/06
Filed: 1920-07-09
Abstract: 147,926. Campbell, J. C. July 15, 1916, [Convention date]. Percussive drills.-In a fluid-pressure percussive hammer, the reciprocation of the piston is effected by air supplied to and withdrawn from the cylinder by a compressor and exhauster with a rotary piston arranged at the rear of the tool. The air passes through passages 40, 40a, 41, 41<a> controlled by a piston valve 43 which is reciprocated by a lug 44 engaging a cam groove 36 in the rotary drum 35. The cylinder 20 is secured to the tool-holder 22, and is slidable in a casing 10 secured to the drum casing 11. A controlling- sleeve 14 provided with ports 16, 17, 18 which control ports 26, 27, 28 in the cylinder, is arranged between the casing 10 and cylinder 20, and is rearwardly pressed by a spring 31. To operate the hammer, the drum 35 is rotated and the sleeve 14 pressed forward according to the speed desired.
Patent GB-315099-A (GB)
Title: Improvements in display cards or the like
IPC: G09F5/04
Filed: 1928-07-10
Abstract: 315,099. Thornton, A. July 10, 1928. Cards for displaying are formed with arcuate radial slits 4 for the reception of the ends of articles such as mending-yarn cards.
Patent GB-531040-A (GB)
Title: Method of welding thin-walled tubes in a wall
IPC: B23K11/00
Filed: 1939-07-10
Abstract: 531,040. Making radiators &c. BAYERISCHE MOTOREN WERKE AKT.-GES. July 10, 1939, No. 20077. Convention date, July 11, 1938. [Classes 83 (ii) and 83 (iv)] Uniting by fusion. - In welding thin rolled tubes 1, particularly of aluminium into walls such as flanges 2, the tubes are first fitted into openings in the walls and the openings are then closed by plugs 3 prior to welding, the plugs being removed after welding. The plugs may be of asbestos, or of metal similar to the parts to be welded in which latter case they are removed after welding by drilling. When producing coolers in which a number of tubes are welded in flanges drilling is effected with the aid of a templet.
Patent GB-148188-A (GB)
Title: Improvements in steering apparatus for air-craft
IPC: B64C9/10
Filed: 1920-07-09
Abstract: 148,188. Flettner, A. July 23, 1918, [Convention date]. Addition to 148,172. Steering.-The auxiliary plane described in the parent Specification for counteracting the effect of the movement of the centre of pressure of the main steering-plane of an aircraft is, according to the present invention, arranged so that it becomes adjusted to a greater angle of incidence when moved downwards than when moved upwards. This may be effected by setting the auxiliary plane at a negative angle to the airstream in the normal position; or the auxiliary plane c may be pivoted at e to the arm f carried by the main steering-plane a, and connected by a rod g to a fixed point k, which is so located that the auxiliary plane, when moved upwards to the position III, assumes a smaller angle to the airstream than when moved downwards to the position II.
Patent GB-1498774-A (GB)
Title: Heterocyclic phosphonium compounds and process for preparing the same
IPC: C07F9/655
Filed: 1976-05-14
Abstract: 1498774 Phosphonium salts; phosphoranes G D SEARLE & CO 14 May 1976 20128/76 Headings C2P and C2C The invention comprises compounds of formula (wherein X- is a pharmacologically acceptable anion), and their preparation from compounds of formula (wherein Y is a leaving group, e.g. halo) by heating in an inert solvent. The anion of the resultant compound I initially corresponds to Y, but may be replaced by a different anion by reaction with a mineral salt or by ion exchange. (6 - Bromohexanoylmethylene)triphenylphosphorane is prepared from 6-bromohexanoyl chloride by reaction with imidazole to give 1-(6-bromohexanoyl)imidazole which is reacted with methylenetriphenylphosphorane. (6 - Chlorohexanoylmethylene)triphenylphosphorane is prepared from 6-chlorohexanoyl chloride by reaction with diazomethane to give 1,7-dichloro-2-heptanone, reaction of which with Ph 3 P yields (7-chloro-2-oxoheptyl)triphenylphosphonium chloride (also obtainable by reaction of a compound I with HCl), which is reacted with aq. NaOH. Compounds I are credited with analgesic and morphine antagonistic activities, and may be made up with carriers into pharmaceutical compositions for oral and parenteral administration.
Patent GB-223685-A (GB)
Title: Improvements in or relating to milking machines and apparatus
IPC: A01J5/16
Filed: 1923-08-08
Abstract: 223,685. Sundberg, S. L. Aug. 8, 1923. Valves actuated automatically and intermittently. -A valve 11 reciprocating in a casing 10 carries projections adapted to close inlets 13, 14, to the compartments in the casing on the lower and the upper sides of the valve respectively. The stroke of the valve is adjustable, preferably by screwing the upper projection 15 more or less into the valve body. Passages 20 of small cross-section maintain communication between the compartments on each side of the valve. In the application shown the inlet 14 communicates with the inner chamber of a teat-cup that is provided with a milk outlet 8. The teat-cup has a number of outer chambers 4 situated between the rubber portion 2 of the cup and a rigid outer wall 1. Each outer chamber communicates through a radial passage 3 with an annular recess 19 connected by a passage 18 with the upper compartment in the valve casing. The inlet 13 to the lower compartment communicates through ports 12 with the outer air. In operation the tube 8 is connected to the milk pail in which a vacuum is maintained. The outer pressure lifts the valve closing the inlet 14; air then leaks through the passages 20, which may be adjustable, and round the valve thus causing the walls of the teat-cup to fall in. When the pressure on the upper side of the valve reaches a certain point the weight of the valve causes it to fall to the bottom of the casing again thus restoring it to the initial position. A spring may be used to effect the opening of the inlet 14 in place of the weight of the valve.
Patent GB-1244434-A (GB)
Title: Improvements in and relating to photosensitive materials
IPC: G03C1/58
Filed: 1969-04-22
Abstract: 1,244,434. Alkylamino alkyl naphthols. RICOH K.K. 22 April, 1969 [15 May, 1968], No. 20378/69. Heading C2C. [Also in Division G2] Naphthols of formula wherein R 1  and R 2  are hydrogen, phenyl or alkyl with 1 to 5 carbon atoms or together complete a heterocyclic ring which is 5- or 6-membered, and Y is hydroxyl or an alkyl or alkoxy group with 1 to 6 carbon atoms are prepared by reacting the appropriate 4-(hydroxy, alkyl or alkoxy) - 1 - naphthol with the appropriate amino methane. The reaction of 4-ethoxy- 1 - naphthol with N,N,N<SP>1</SP>,N<SP>1</SP> - tetramethyldiamino methane is exemplified.
Patent GB-442578-A (GB)
Title: Joint-making devices for shaking or tumbling barrels
IPC: B01F15/00
Filed: 1934-07-04
Abstract: 442,578. Securing covers of tumbling- barrels. BARRETT, F., 34, Harford Street, Birmingham. July 4, 1934. No. 20442/35. Divided out of 442,514. [Class 60] [See also Groups XVIII and XXV] A quick - acting manually - operable lever, crank, cam, eccentric, or the like having means to adjust the terminalpressure exerted by it is used to force the cover of a tumbling barrel, or its sealing medium, into contact with the barrel. In the form shown in Figs. 1 and 3 a two-armed lever 2, 4 is carried by a trunnion 6, the member 4 which contacts with the cover 5 being screwed so that its effective length may be adjusted to cause it to exert the desired pressure. The member 4 passes its dead-centre position, so that the device is self-locking. The lugs 7 in which the ends of the trunnion 6 are mounted are formed with inclined slots or enlarged apertures to enable the trunnion to be removed when the aperture is to be uncovered. Alternative means for adjusting the pressure comprise rotatable bushes 14, Fig. 5, with eccentric apertures 15 for the ends of the trunnion 6, or an adjustable pressure member 18, Fig. 7, mounted on the cover and engaged by the securing device. The member 18 comprises a pivoted arm adjustable to and from the cover by nuts 19.